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After more than four decades of research and development, a [#permalink]
23 Nov 2005, 05:42

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

100%(01:07) correct
0%(00:00) wrong based on 0 sessions

After more than four decades of research and development, a new type of jet engine is being tested that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit.

A. tested that could eventually propel aircraft anywhere in the world within two hours or help
B. tested that could eventually have the capability of propelling aircraft anywhere in the world within two hours or to help
C. tested, eventually able to propel aircraft anywhere in the world within two hours, or helping
D. tested, and it eventually could propel aircraft anywhere in the world within two hours or helping
E. tested, and it could eventually have the capability to propel aircraft anywhere in the world within two hours or help _________________

After more than four decades of research and development, a new type of jet engine is being tested that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit.

A. tested that could eventually propel aircraft anywhere in the world within two hours or helpB. tested that could eventually have the capability of propelling aircraft anywhere in the world within two hours or to helpC. tested, eventually able to propel aircraft anywhere in the world within two hours, or helpingD. tested, and it eventually could propel aircraft anywhere in the world within two hours or helpingE. tested, and it could eventually have the capability to propel aircraft anywhere in the world within two hours or help

+"that could eventually...." should be suitably placed in order to make a noun clause of "a new type of jet engine" . The clause is wronly placed in A and B ---> the two out. Moreover, "to help" in B fails to maintain the sentence's illism.
+ "or helping" in C and D are wrong coz of not maintaining the parallelism.

I picked A first. But based on the above discussion, E sounds more logical because the jet engine being tested is not going to reduce number of fling hours immediately. It will have the capability to do so, provided the test succeeds.

A = a new type of jet engine that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit is being tested.